PICA 6055 - Estuche con 12 Minas albañil de Grafito 10H

I've given 5 stars as they do exactly what they say on the pack. They are great at marking out on concrete, blocks & bricks. Unfortunately I wanted to mark plasterboard, metal, painted walls & ceiling grid and they are pretty much useless for that! Way too hard, they just scratch.At some point I'll need to set stuff out on concrete, so they'll come in handy for me, but for many, they'll be far too hard.I should've read the info properly! 🤦🏻‍♂️